Answer:
57
Step-by-step explanation:
take both angles of the triangle add them together and subtract from 180
Answer:
the mean number of siblings is 8
Step-by-step explanation:
all you have to do is look at the graph.
If 12.6 was rounded, that means that it was rounded to the tenths place.
You know this because the number has one decimal place, so that must be what it was rounded to.